42121014340412 has 48 divisors (see below), whose sum is σ = 85397305570752. Its totient is φ = 17804311349760.

The previous prime is 42121014340393. The next prime is 42121014340439. The reversal of 42121014340412 is 21404341012124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200642462 + ... + 200852282.

It is an arithmetic number, because the mean of its divisors is an integer number (1779110532724).

Almost surely, 2^{42121014340412} is an apocalyptic number.

It is an amenable number.

42121014340412 is an abundant number, since it is smaller than the sum of its proper divisors (43276291230340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42121014340412 is a wasteful number, since it uses less digits than its factorization.

42121014340412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308118 (or 308116 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 42121014340412 its reverse (21404341012124), we get a palindrome (63525355352536).

The spelling of 42121014340412 in words is "forty-two trillion, one hundred twenty-one billion, fourteen million, three hundred forty thousand, four hundred twelve".